Buggy code:
public class Label extends Component { private boolean legacyRenderer ; private String text = "" ; private Image icon ; private Image maskedIcon ; private int valign = BOTTOM ; private int textPosition = RIGHT ; private int gap = 2 ; private int shiftText = 0 ; private boolean tickerRunning = false ; private static boolean defaultTickerEnabled = true ; private boolean tickerEnabled = Label . defaultTickerEnabled ; private long tickerStartTime ; private long tickerDelay ; private boolean rightToLeft ; private boolean endsWith3Points = true ; private Object mask ; private String maskName ; private EventDispatcher textBindListeners = null ; private boolean shouldLocalize = true ; private boolean showEvenIfBlank = false ; private int shiftMillimeters = 1 ; private int stringWidthUnselected = - 1 ; public Label ( String text ) { } public Label ( String text , String uiid ) { } public Label ( ) { } public Label ( Image icon ) { } public Label ( Image icon , String uiid ) { } public Label ( String text , Image icon , String uiid ) { } public Label ( String text , Image icon ) { } public int getBaselineResizeBehavior ( ) { } @ Override public int getBaseline ( int width , int height ) { } public void setText ( String text ) { } private void localize ( ) { } void initComponentImpl ( ) { } void deinitializeImpl ( ) { } public String getText ( ) { } public void setIcon ( Image icon ) { } void checkAnimation ( ) { } public Image getIcon ( ) { } public void setAlignment ( int align ) { } public void setVerticalAlignment ( int valign ) { } public int getVerticalAlignment ( ) { } public int getAlignment ( ) { } public void setTextPosition ( int textPosition ) { } public int getTextPosition ( ) { } public void setGap ( int gap ) { } public int getGap ( ) { } protected String paramString ( ) { } public void paint ( Graphics g ) { <START_BUG> if ( legacyRenderer ) { <END_BUG> getUIManager ( ) . getLookAndFeel ( ) . drawLabel ( g , this ) ; return ; } Object icn = null ; Image i = getIconFromState ( ) ; if ( i != null ) { icn = i . getImage ( ) ; } else { if ( ( ( ( text ) == null ) || ( text . equals ( "" ) ) ) || ( text . equals ( "<seq2seq4repair_space>" ) ) ) { return ; } } int cmpX = ( getX ( ) ) + ( g . getTranslateX ( ) ) ; int cmpY = ( getY ( ) ) + ( g . getTranslateY ( ) ) ; int cmpHeight = getHeight ( ) ; int cmpWidth = getWidth ( ) ; Style s = getStyle ( ) ; Font f = s . getFont ( ) ; impl . drawLabelComponent ( g . getGraphics ( ) , cmpX , cmpY , cmpHeight , cmpWidth , s , text , icn , null , 0 , gap , isRTL ( ) , false , textPosition , getStringWidth ( f ) , tickerRunning , shiftText , endsWith3Points , valign ) ; } protected Dimension calcPreferredSize ( ) { } public int getShiftText ( ) { } public void setShiftText ( int shiftText ) { } public boolean shouldTickerStart ( ) { } Image getIconFromState ( ) { } int getAvaliableSpaceForText ( ) { } public void startTicker ( ) { } public void startTicker ( long delay , boolean rightToLeft ) { } public void stopTicker ( ) { } void tryDeregisterAnimated ( ) { } public boolean isTickerRunning ( ) { } public void setTickerEnabled ( boolean tickerEnabled ) { } public boolean isTickerEnabled ( ) { } public void setEndsWith3Points ( boolean endsWith3Points ) { } public boolean isEndsWith3Points ( ) { } public boolean animate ( ) { } public static boolean isDefaultTickerEnabled ( ) { } public static void setDefaultTickerEnabled ( boolean aDefaultTickerEnabled ) { } public void setMask ( Object mask ) { } public Object getMask ( ) { } public String getMaskName ( ) { } public void setMaskName ( String maskName ) { } public String [ ] getPropertyNames ( ) { } public Class [ ] getPropertyTypes ( ) { } public String [ ] getPropertyTypeNames ( ) { } public Object getPropertyValue ( String name ) { } public String setPropertyValue ( String name , Object value ) { } public Image getMaskedIcon ( ) { } public String [ ] getBindablePropertyNames ( ) { } public Class [ ] getBindablePropertyTypes ( ) { } public void bindProperty ( String prop , BindTarget target ) { } public void unbindProperty ( String prop , BindTarget target ) { } public Object getBoundPropertyValue ( String prop ) { } public void setBoundPropertyValue ( String prop , Object value ) { } public boolean isShouldLocalize ( ) { } public void setShouldLocalize ( boolean shouldLocalize ) { } public int getShiftMillimeters ( ) { } public void setShiftMillimeters ( int shiftMillimeters ) { } public boolean isShowEvenIfBlank ( ) { } public void setShowEvenIfBlank ( boolean showEvenIfBlank ) { } public int getStringWidth ( Font fnt ) { } public boolean isLegacyRenderer ( ) { } public void setLegacyRenderer ( boolean legacyRenderer ) { } }

Fix:
if ( ( legacyRenderer ) || ( isCellRenderer ( ) ) ) {